CVE-2026-26067

Description

October is a Content Management System (CMS) and web platform. Prior to 3.7.14 and 4.1.10, a server-side information disclosure vulnerability was identified in the handling of CSS preprocessor files. Backend users with Editor permissions could craft .less, .sass, or .scss files that leverage the compiler's import functionality to read arbitrary files from the server. This worked even with cms.safe_mode enabled. This vulnerability is fixed in 3.7.14 and 4.1.10.

PUBLISHED Reserved 2026-02-10 | Published 2026-04-21 | Updated 2026-04-21 | Assigner GitHub_M

Problem types

CWE-863: Incorrect Authorization

CWE-184: Incomplete List of Disallowed Inputs

Product status

References

github.com/...ctober/security/advisories/GHSA-3888-q23f-x7qh

cve.org (CVE-2026-26067)

nvd.nist.gov (CVE-2026-26067)

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